Indeed, trust is about knowing that a counterparty has a strong incentive to act with goodwill. For important things, the incentive is that they will be punishe

Indeed, trust is about knowing that a counterparty has a strong incentive to act with goodwill. For important things, the incentive is that they will be punished by the justice system if they don't act with goodwill. Without a real-world identity and a reasonable guarantee of enforcement, it's a lot harder to establish any kind of serious trust, possibly fundamentally impossible.